Remove all .gyp and .gypi files.

third_party/libXNVCtrl/libXNVCtrl.gyp

Index: third_party/libXNVCtrl/libXNVCtrl.gyp
diff --git a/third_party/libXNVCtrl/libXNVCtrl.gyp b/third_party/libXNVCtrl/libXNVCtrl.gyp
deleted file mode 100644
index c72c795218dea7bf8fd9e85ea22a21bbcd066787..0000000000000000000000000000000000000000
--- a/third_party/libXNVCtrl/libXNVCtrl.gyp
+++ /dev/null
@@ -1,18 +0,0 @@
-# Copyright (c) 2012 The Chromium Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-
-{
-  'targets': [
-    {
-      'target_name': 'libXNVCtrl',
-      'type': 'static_library',
-      'sources': [
-        'NVCtrl.c',
-        'NVCtrl.h',
-        'NVCtrlLib.h',
-        'nv_control.h',
-      ],
-    },
-  ],
-}